(x) 1966-73 Queen Elizabeth II Definitives Issued Stamps 5c. blue block of twenty (10x2) with margins at sides, the right block of eighteen with perforations double, fine unmounted mint. BW 444bc, $1350+. Photo Note: It is apparent that a quantity of sheets were produced with the imperforate error at left. Most of these were discovered and some at least were "corrected" by the unusual procedure of passing the sheets through the perforating machine a second time. This corrected the imperforate error but resulted in the rest of the sheet being doubly perforated.
(x) 1966-73 Queen Elizabeth II Definitives Issued Stamps 5c. blue block of twenty (10x2) with margins at sides, the right block of eighteen with perforations double, fine unmounted mint. BW 444bc, $1350+. Photo Note: It is apparent that a quantity of sheets were produced with the imperforate error at left. Most of these were discovered and some at least were "corrected" by the unusual procedure of passing the sheets through the perforating machine a second time. This corrected the imperforate error but resulted in the rest of the sheet being doubly perforated.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
